LinuxDevice: rename get_number_of_online_cpus arg
LinuxDevice: rename get_number_of_online_cpus arg

Renamed "c" to "core", as that gets passed as a keyword argument inside
get_runtime_parameters().

jimboatarm/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation,bjackman/workload-automation,bjackman/workload-automation,bjackman/workload-automation,jimboatarm/workload-automation